23103021211 has 4 divisors (see below), whose sum is σ = 23118435000. Its totient is φ = 23087607424.

The previous prime is 23103021203. The next prime is 23103021247. The reversal of 23103021211 is 11212030132.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 23103021211 - 2³ = 23103021203 is a prime.

It is a super-3 number, since 3×23103021211³ (a number of 32 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23103021251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7704646 + ... + 7707643.

It is an arithmetic number, because the mean of its divisors is an integer number (5779608750).

Almost surely, 2^23103021211 is an apocalyptic number.

23103021211 is a deficient number, since it is larger than the sum of its proper divisors (15413789).

23103021211 is a wasteful number, since it uses less digits than its factorization.

23103021211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15413788.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 23103021211 its reverse (11212030132), we get a palindrome (34315051343).

The spelling of 23103021211 in words is "twenty-three billion, one hundred three million, twenty-one thousand, two hundred eleven".